From: Eric S Fraga <e.fraga@ucl.ac.uk>
To: Heiko Schmidt <Heiko.Schmidt@webbedtables.de>
Cc: emacs-orgmode@gnu.org
Subject: Re: ob-calc duplicate stack-element issue
Date: Sun, 15 Mar 2020 12:06:46 +0000 [thread overview]
Message-ID: <87imj5n7op.fsf@ucl.ac.uk> (raw)
In-Reply-To: <9eed12f5-face-eb4f-4006-e8ee7890e0a9@webbedtables.de> (Heiko Schmidt's message of "Sun, 15 Mar 2020 11:46:29 +0100")
On Sunday, 15 Mar 2020 at 11:46, Heiko Schmidt wrote:
> - I want to use ob-calc to do some "literate calculation" with the
> purpose to document what I thought at the time I wrote it.
I have never managed to get ob-calc to do what I want either so I cannot
help you directly with your query. Instead, I use embedded calc mode,
along these lines:
--8<---------------cut here---------------start------------->8---
Number of cars (PKW) in germany:
ncars := 45000000.
Yearly mileage in [km/y]
mileage := 15000 km/y
Calculate amount of complete km per year
mileage ncars => 675000000000. km / y
--8<---------------cut here---------------end--------------->8---
You have to activate embedded mode. By default, calc will look for
expressions surrounded by empty lines. The := operator assigns values
to variables and the => operator says to show the result here instead of
replacing the expression with the result.
As an aside, calc understands units which is quite nice...
HTH,
eric
--
: Eric S Fraga via Emacs 28.0.50, Org release_9.3.6-412-ge18415
next prev parent reply other threads:[~2020-03-15 12:07 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-15 10:46 ob-calc duplicate stack-element issue Heiko Schmidt
2020-03-15 12:06 ` Eric S Fraga [this message]
2020-03-15 15:08 ` Heiko Schmidt
2020-03-18 14:47 ` Marco Wahl
2020-03-18 15:50 ` Eric S Fraga
2020-03-18 16:23 ` Marco Wahl
2020-03-18 16:41 ` Eric S Fraga
2020-04-06 4:39 ` Heiko Schmidt
2020-04-06 4:16 ` Heiko Schmidt
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